There are several close substitutes for Bayer aspirin but fewer substitutes for a complete medical examination. Therefore, all other things equal, you would expect the demand for:

A) medical examinations to be more price-elastic than is the demand for Bayer aspirin.
B) Bayer aspirin to be more price-elastic than is the demand for medical examinations.
C) Bayer aspirin to be more perfectly price-inelastic.
D) the two to be equally price-elastic.